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Disparate impact in the law of the United States refers to practices in employment, housing, and other areas that adversely affect one group of people of a protected characteristic more than another, even though rules applied by employers or landlords are formally neutral. Although the protected classes vary by statute, most federal civil ...
The Pareto principle may apply to fundraising, i.e. 20% of the donors contributing towards 80% of the total. The Pareto principle (also known as the 80/20 rule, the law of the vital few and the principle of factor sparsity [1] [2]) states that for many outcomes, roughly 80% of consequences come from 20% of causes (the "vital few").
The often cited "80-20 rule", also known as the "Pareto principle" or the "Law of the Vital Few", whereby 80% of crimes are committed by 20% of criminals, or 80% of useful research results are produced by 20% of the academics, is an example of such rankings observable in social behavior.
Disparate impact may also be reflected in access to information about voter ID laws. A 2015 experimental study found that election officials queried about voter ID laws are more likely to respond to emails from a non-Latino white name (70.5% response rate) than a Latino name (64.8% response rate), though response accuracy was similar across ...
Some researchers include a metacognitive component in their definition. In this view, the Dunning–Kruger effect is the thesis that those who are incompetent in a given area tend to be ignorant of their incompetence, i.e., they lack the metacognitive ability to become aware of their incompetence.
Lehr's [3] [4] (rough) rule of thumb says that the sample size (for each group) for the common case of a two-sided two-sample t-test with power 80% (=) and significance level = should be: , where is an estimate of the population variance and = the to-be-detected difference in the mean values of both samples.
The Pareto distribution, named after the Italian civil engineer, economist, and sociologist Vilfredo Pareto, [2] is a power-law probability distribution that is used in description of social, quality control, scientific, geophysical, actuarial, and many other types of observable phenomena; the principle originally applied to describing the distribution of wealth in a society, fitting the trend ...
Oskamp tested groups of clinical psychologists and psychology students on a multiple-choice task in which they drew conclusions from a case study. [37] Along with their answers, subjects gave a confidence rating in the form of a percentage likelihood of being correct. This allowed confidence to be compared against accuracy.